package com.sanri.tools.modules.core.service;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;

public class NamedThreadFactory implements ThreadFactory {
	private static final AtomicInteger POOL_NUMBER = new AtomicInteger(1);
	private final ThreadGroup group;
	private final AtomicInteger threadNumber = new AtomicInteger(1);
	private final String namePrefix;

	public NamedThreadFactory(String name) {
		SecurityManager s = System.getSecurityManager();
		group = (s != null) ? s.getThreadGroup() : Thread.currentThread().getThreadGroup();
		if (null == name || name.isEmpty()) {
			name = "pool";
		}
		namePrefix = name + "-" + POOL_NUMBER.getAndIncrement() + "-thread-";
	}

	@Override
	public Thread newThread(Runnable r) {
		Thread t = new Thread(group, r, namePrefix + threadNumber.getAndIncrement(), 0);
		if (t.isDaemon()) {
			t.setDaemon(false);
		}
		if (t.getPriority() != Thread.NORM_PRIORITY) {
			t.setPriority(Thread.NORM_PRIORITY);
		}
		return t;
	}
}
